Duplicating device.



No. 714,306. Patanted Dec. 2, I902.

J, A. LEE.

nuPucATme DEVICE.

(Application and June as, 1902.)

(No llodel Iii/anion u: uonms PETERS ca. Mum-um WASHINGTON; uv n UNITEDSTATES ATENT FFICE.

JOHN ALDENLEE, OF MILTON, MASSACHUSETTS.

DUPLICATING DEVICE.

SPECIFICATION forming part of Letters Patent No. 714,806, dated December2, 19Q2- Application filed June 28,

ful Improvements in Duplicating Devices, of

which the following is a specification.

My invention-relates to duplicating devices of the class employing asheetof paper orother suitable material coated with carbon or a similartransferring composition by means of which a pattern, inscription, orthe like traced or delineated upon the uncoated surface by means of apencil or other pointed instrument may be imprinted upon a sheet ofpaper, fabric, or other material placed underneath theduplicating-sheet.

The chief objects of my invention are to provide a duplicating devicefor artistic, educational, or like: purposes which shall' have upon itsuncoated face a pattern, figure, design, or other impression adapted tobe reproduced upon another sheet of suitable material by tracing and toprovide a duplicating device of the above-mentioned class whosecarbonized or printing surface shall be protectedfrom handling and fromcontact with other objects which would be to the mutual disadvantage ofsuch objects and of the car- 1 Unless the coated surface a bonizedsurface.

of the duplicating device be protected insome wayit is the experience ofall who have used,

duplicating devices that the hands of the user i and whatever objectscome in contact with.

the coated surface are apt to become smutted. This is a seriousdisadvantage, especially Where a duplicating device is designed tobe'used fored ucational or artistic purposes.

My device is intended to be used for such purposes and is especiallyadapted for use in j kindergartens where it is desired to transfer apattern, figure,-or the like to a sheet of pa-i tper or other materialto be subsequently cut 1902. Serial No. 113.658- (No model.)

ferrin g patterns for embroidery and other needle-work, and its usegreatly reduces the danger of soiling the hands of the user and thefabric to be operated upon and other objects in the vicinity.

The accompanying drawing illustrates in perspective view an embodimentof my invention.

My device consists of a sheet of paper or other suitable material foldeduponitself,preferably across its middle at the crease A, forming twoleaves B and C. The inner surface of one of the leaves, as B, is coatedwith carbon or any desired transferring composition adapted to reproduceor transfer upon a sheet placed thereunder the impression of a pencil orother pointed instrument made upon the outer surface.

Upon the outer surface of the duplicating device is depicted a figure,pattern, design, or the like to be traced and reproduced andconventionally shown in the drawing as the figure D. The leaf 0 may, ifdesired, also hear a figure on its outer side, each sheet therebybearing two patterns. The inner surface of 0 may also, if desired, becoated with a transferring composition, the advantage of providing bothleaves with the transferring composition being that the material to beoperated upon will receive an impres sion of the pattern on both sides,which will facilitate .the cutting of the pattern or the working thereofby the needle-worker, as the case may be. If, however, only one side ofthe pattern-receiving sheet is to be marked, whether the obverse .or thereverse side, I prefer to provide only one leaf of my duplicating devicewith the transferring composition.

The operation of my device will be obvious. I place the sheet E to beoperated upon between the leaves B and C, where it will lie and be heldwithout danger of slipping or rubbing, and trace the figure D with asuitable pointed instrument, whereby the design or pattern D will betransferred and reproduced through the transferring composition upon thesheet E inserted between the leaves.

I claim as my invention 1. A duplicating device comprising a sheetfolded upon itself to form a pair of leaves, whose interior is therebyprotected from contact from Without and is adapted to receive thematerial to be operated upon, a transferring composition upon the innersurface of one of the leaves, and a pattern, figure, or design portrayedupon the outer surface of one of the leaves, adapted to be traced,whereby such pattern, figure or design may be transferred to a materialinserted between said leaves, substantially as described.

2. A duplicating device comprising a sheet folded upon itself to form apair of leaves, whose interior is thereby protected from contact fromwithout and is adapted to receive the material to be operated upon, atransferring com position upon the inner surface of one of the leaves,and a pattern, figure, or design portrayed upon the outer surface of theleaf, having the transferring composition adapted to be traced, wherebysuch pattern, figure or design may be transferred to a material-insertedbetween'said leaves, substantially as described.

3. A duplicating device comprising a sheet folded upon itself to form apair of leaves, whose interior is thereby protected from contact fromwithout and is adapted to receive the material to be operated upon, atransferring composition upon the inner surface of both of said leaves,and a pattern, figure or design portrayed upon the outer surface of saidsheet adapted to be traced whereby such pattern, figure or design may betransferred to the material to be operated upon, substantially asdescribed.

Signed by me at Boston, Massachusetts, this 26th day of June, 1902.

JOHN ALDEN LEE.

Witnesses:

ROBERT CUsHMAN, JOSEPH T. BRENNAN.

